package main

import "fmt"

func main()  {
	/*
	比较三个数：从小到大输出
	 */

	 a,b,c:=1,3,2
	//step1,比较a和b的之
	if a > b{
		a,b = b,a
	}
	//a<=b
	//step2,比较a和c
	if a > c{
		a, c = c,a
	}
	//a <=c
	//step3,比较b和c
	if b > c{
		b,c = c,b
	}
	fmt.Printf("%d <= %d <= %d\n",a,b,c)

}
